What does Intel IPP status -129 (ippStsVLCUsrTblCodeLengthErr) mean?

 
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ippStsVLCUsrTblEscCodeLengthErr ippStsVLCInternalTblErr

ippStsVLCUsrTblCodeLengthErr

This status identifies a bad code-length entry in a user-defined VLC table. The table cannot be transformed into a prefix-code decoder without violating the expected code-length limits.

The compressed data should not be blamed until the table is validated. A wrong table makes normal payload bits look illegal.

Check these details

  • The exact entry whose code length is zero, too long, or inconsistent.
  • The number of symbols declared by the table header.
  • Canonical prefix-code validation before calling IPP.

Intel IPP Error Reporting · FFmpeg bitstream reader · FFmpeg VLC table code


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